Finding the Fourth Proportional to 8,780.34, 12,116.87 and 4,801.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.34 : 12,116.87 = 4,801.82 : x
2. Step 2: Convert to fraction form
   8,780.34/12,116.87 = 4,801.82/x
3. Step 3: Cross multiply
   8,780.34x = 12,116.87 × 4,801.82
4. Step 4: Simplify right side
   8,780.34x = 58,183,007.56
5. Step 5: Solve for x
   x = 58,183,007.56/8,780.34
6. Step 6: Final answer
   x = 6,626.51